body {
    font-size: 16px; /* @ EOMB */
    margin:0;
    padding:0;
}
#principal{
    width:500px;
}
* html body {
    font-size: 100%; /* @ IE */
}
body * {
    font-size: 87.5%;
    font-family: "Trebuchet MS", Trebuchet, Verdana, Helvetica, Arial, sans-serif;
}
body * * {
    font-size: 100%;
}
h1 {
    margin: 1em 0 1.5em;
    font-size: 18px;
}
h2 {
    margin: 2em 0 1.5em;
    font-size: 16px;
}
p {
    margin: 0;
}
pre, pre+p, p+p {
    margin: 1em 0 0;
}
code {
    font-family: "Courier New", Courier, monospace;
}
#proximo{
    float:right;
}
#desabilitado{
    color:gray;
}

